U.S. patent number 11,094,748 [Application Number 16/307,470] was granted by the patent office on 2021-08-17 for pixel arrangement structure.
This patent grant is currently assigned to WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.. The grantee listed for this patent is Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.. Invention is credited to Jun Chen.
United States Patent |
11,094,748 |
Chen |
August 17, 2021 |
Pixel arrangement structure
Abstract
A pixel arrangement structure is disclosed. The structure
includes multiple first pixel rows and multiple second pixel rows
arranged alternately. Wherein each of the first pixel rows includes
multiple first sub-pixels and multiple second sub-pixels disposed
alternately and at intervals, and each of the second pixel rows
includes multiple third sub-pixels disposed at intervals. Wherein
the first sub-pixel and the second sub-pixel adjacent to the third
sub-pixel form a virtual triangle, the third sub-pixel is disposed
in the virtual triangle formed by the first sub-pixel and the
second sub-pixel adjacent to the third sub-pixel. Applying the
pixel arrangement structure to an OLED display panel can improve
the resolution, reduce the fabrication difficulty, increase the
pixel area, and improve the brightness and life of the OLED display
panel.
Inventors: |
Chen; Jun (Wuhan,
CN) |
Applicant: |
Name |
City |
State |
Country |
Type |
Wuhan China Star Optoelectronics Semiconductor Display Technology
Co., Ltd. |
Wuhan |
N/A |
CN |
|
|
Assignee: |
WUHAN CHINA STAR OPTOELECTRONICS
SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD. (Hubei,
CN)
|
Family
ID: |
64074067 |
Appl.
No.: |
16/307,470 |
Filed: |
September 26, 2018 |
PCT
Filed: |
September 26, 2018 |
PCT No.: |
PCT/CN2018/107764 |
371(c)(1),(2),(4) Date: |
December 05, 2018 |
PCT
Pub. No.: |
WO2020/000728 |
PCT
Pub. Date: |
January 02, 2020 |
Prior Publication Data
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|
|
Document
Identifier |
Publication Date |
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US 20210098540 A1 |
Apr 1, 2021 |
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Foreign Application Priority Data
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|
|
|
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Jun 29, 2018 [CN] |
|
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201810712769.4 |
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Current U.S.
Class: |
1/1 |
Current CPC
Class: |
H01L
27/326 (20130101); H01L 27/3216 (20130101); H01L
27/3218 (20130101) |
Current International
Class: |
H01L
27/32 (20060101) |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
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104681594 |
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Jun 2015 |
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CN |
|
106981501 |
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Jul 2017 |
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CN |
|
107706213 |
|
Feb 2018 |
|
CN |
|
107887404 |
|
Apr 2018 |
|
CN |
|
Primary Examiner: Landau; Matthew C
Assistant Examiner: Ashbahian; Eric K
Attorney, Agent or Firm: Lei; Leong C.
Claims
What is claimed is:
1. A pixel arrangement structure, comprising: multiple first pixel
rows and multiple second pixel rows arranged alternately; wherein
each of the first pixel rows includes multiple first sub-pixels and
multiple second sub-pixels disposed alternately and at intervals,
and each of the second pixel rows includes multiple third
sub-pixels disposed at intervals; and wherein the first sub-pixel
and the second sub-pixel adjacent to the third sub-pixel form a
virtual triangle, the third sub-pixel is disposed in the virtual
triangle formed by the first sub-pixel and the second sub-pixel
adjacent to the third sub-pixel, and the first sub-pixel and the
second sub-pixel are disposed at vertexes of the virtual triangle;
wherein a shape of the third sub-pixel is a regular hexagon;
wherein the first sub-pixel includes three first regular hexagonal
portions having a same area, a pair of adjacent side edges of each
first regular hexagonal portion is respectively overlapped with
side edges of the other two first regular hexagonal portions; the
second sub-pixel includes three second regular hexagonal portions
having a same area, a pair of adjacent side edges of each second
regular hexagonal portion is respectively overlapped with side
edges of the other two second regular hexagonal portions; wherein a
contour edge of each of the first sub-pixel and the second
sub-pixel has three concave angles; the three concave angles of the
contour edge of the first sub-pixel are respectively opposite to
vertexes of three third sub-pixels adjacent to the first sub-pixel;
and the three concave angles of the contour edge of the second
sub-pixel are respectively opposite to vertexes of three third
sub-pixels adjacent to the second sub-pixel.
2. The pixel arrangement structure according to claim 1, wherein
areas of the first sub-pixel and the second sub-pixel are the same,
and the area of each of the first sub-pixel and the second
sub-pixel is greater than an area of the third sub-pixel.
3. The pixel arrangement structure according to claim 1, wherein
each of the first sub-pixel and the second sub-pixel includes three
first sides and three second sides, and the first sides and the
second sides are alternately connected to form a closed graphic;
the first side is an arc that is caved toward an inside of the
closed graphic, and the second side is an arc that is caved toward
an outside the closed graphic.
4. The pixel arrangement structure according to claim 1, wherein
one first sub-pixel and two second sub-pixels adjacent to the third
sub-pixel form a virtual equilateral triangle, the one first
sub-pixel and the two second sub-pixels adjacent to the third
sub-pixel are respectively located at three vertexes of the virtual
equilateral triangle, and a center of the third sub-pixel and a
center of the virtual equilateral triangle are coincide.
5. The pixel arrangement structure according to claim 1, wherein
two first sub-pixels and one second sub-pixel adjacent to the third
sub-pixel form a virtual equilateral triangle, the two first
sub-pixels and the one second sub-pixel adjacent to the third
sub-pixel are respectively located at three vertexes of the virtual
equilateral triangle, and a center of the third sub-pixel and a
center of the virtual equilateral triangle are coincide.
6. The pixel arrangement structure according to claim 1, wherein
each of the third sub-pixels is correspondingly disposed at a gap
between the first sub-pixels and the second sub-pixels which are
adjacent and arranged at intervals.
7. The pixel arrangement structure according to claim 1, wherein
colors of the first sub-pixel, the second sub-pixel, and the third
sub-pixel are different, and are respectively one of a red
sub-pixel, a blue sub-pixel and a green sub-pixel.
Description
FIELD OF THE INVENTION
The present invention relates to a display technology field, and
more particularly to a pixel arrangement structure.
BACKGROUND OF THE INVENTION
Organic Light Emitting Display (OLED) has many advantages such as
self-luminous, low driving voltage, high luminous efficiency, short
response time, high definition and contrast ratio, near 180.degree.
viewing angle, wide temperature range, flexible display and
large-area full-color display such that the OLED has been
recognized by the industry as the most promising display
device.
According to the driving method, OLED can be divided into two
types: a passive matrix OLED (PMOLED) and an active matrix OLED
(AMOLED), namely direct addressing and thin-film transistor (TFT)
matrix addressing. Wherein the AMOLED has pixels arranged in an
array, and belongs to an active display type, which has high
luminous efficiency, and is generally used as a high-definition
large-sized display device.
The OLED device generally includes a substrate, an anode disposed
on the substrate, a hole injection layer disposed on the anode, a
hole transport layer disposed on the hole injection layer, and a
light-emitting layer disposed on the hole transport layer, an
electron transport layer on the light-emitting layer, an electron
injection layer provided on the electron transport layer, and a
cathode provided on the electron injection layer. The illumination
principle of the OLED device is that the semiconductor material and
organic light-emitting material are driven by an electric field,
causing illumination by carrier injection and recombination.
Specifically, an OLED device generally uses an indium tin oxide
(ITO) electrode and a metal electrode as the anode and the cathode
of the device, respectively. Under a certain voltage, electrons and
holes are injected respectively from the cathode and the anode to
the electron transport layer and the hole transport layer,
respectively. The electrons and holes migrate to the light-emitting
layer through the electron transport layer and the hole transport
layer, respectively, and meet in the light-emitting layer to form
excitons and excite the light-emitting molecules, and the latter
emits visible light through radiation relaxation.
In the prior art, the OLED device in multiple sub-pixels of an OLED
display panel is generally fabricated by using a precision metal
mask (FMM). With the development of the market, the resolution and
brightness of the display device by the consumer are required to be
higher and higher. For the high-resolution AMOLED display device,
the precision metal mask for evaporation is one of the most
critical technologies that restrict their development. This is due
to the increased resolution of OLED display panel. The fabrication
of precision metal mask for evaporation will become more and more
difficult. At the same time, due to the increase of the resolution,
the distance between the light-emitting regions in the sub-pixels
is getting smaller and smaller, and the color mixing phenomenon of
the display panel by evaporation will become more and more
serious.
In particular, the conventional strip-shaped red (R), green (G),
and blue (B) sub-pixels, the opening region of the precision metal
mask corresponding to each sub-pixel is elongated and having a long
length such that the linearity control is difficult so that color
mixing is easy to occur. The sub-pixel arrangement by a dot-shaped
(Slot) way does not cause the length of the opening region to be
longer, and the linearity can be controlled, but in the process of
manufacturing the opening region of the precision metal mask, a
certain metal raw material is left as a connecting bridge between
each dot-shaped opening region, thereby causing the size of the
opening region of the precision metal mask to be reduced, which
greatly affects the aperture ratio of the produced OLED display
panel. The brightness and service life of OLED display panels
cannot meet the requirements, reducing product yield and limiting
the mass production of high-resolution OLED display panels.
The Sub Pixel Rendering (SPR) technology refers to the technique of
sharing partial sub-pixels by adjacent pixels. This technique can
improve the sensory resolution, so that the display can achieve
higher sensory resolution with the same sub-pixel arrangement
density, or in the case of maintaining the same sensory resolution,
reducing the requirement for the arrangement density of the display
sub-pixels.
SUMMARY OF THE INVENTION
An object of the present invention is to provide a pixel
arrangement structure, which can be applied to an OLED display
panel, can improve the resolution of the OLED display panel, reduce
the fabrication difficulty of the OLED display panel, increase the
pixel area, and improve the brightness and life of the OLED display
panel.
In order to achieve the above purpose, the present invention
provides a pixel arrangement structure, comprising: multiple first
pixel rows and multiple second pixel rows arranged alternately;
wherein each of the first pixel rows includes multiple first
sub-pixels and multiple second sub-pixels disposed alternately and
at intervals, and each of the second pixel rows includes multiple
third sub-pixels disposed at intervals; and wherein the first
sub-pixel and the second sub-pixel adjacent to the third sub-pixel
form a virtual triangle, the third sub-pixel is disposed in the
virtual triangle formed by the first sub-pixel and the second
sub-pixel adjacent to the third sub-pixel, and the first sub-pixel
and the second sub-pixel are disposed at vertexes of the virtual
triangle.
Wherein areas of the first sub-pixel and the second sub-pixel are
the same, and the area of each of the first sub-pixel and the
second sub-pixel is greater than an area of the third
sub-pixel.
Optionally, a shape of the third sub-pixel is a regular
hexagon.
Optionally, the first sub-pixel includes three first regular
hexagonal portions having a same area, a pair of adjacent side
edges of each first regular hexagonal portion is respectively
overlapped with side edges of the other two first regular hexagonal
portions; the second sub-pixel includes three second regular
hexagonal portions having a same area, a pair of adjacent side
edges of each second regular hexagonal portion is respectively
overlapped with side edges of the other two second regular
hexagonal portions.
Wherein a contour edge of each of the first sub-pixel and the
second sub-pixel has three concave angles; the three concave angles
of the contour edge of the first sub-pixel are respectively
opposite to vertexes of three third sub-pixels adjacent to the
first sub-pixel; and the three concave angles of the contour edge
of the second sub-pixel are respectively opposite to vertexes of
three third sub-pixels adjacent to the second sub-pixel.
Optionally, a shape of the third sub-pixel is a circle.
Optionally, each of the first sub-pixel and the second sub-pixel
includes three first sides and three second sides, and the first
sides and the second sides are alternately connected to form a
closed graphic; the first side is an arc that is caved toward an
inside of the closed graphic, and the second side is an arc that
protrudes outside the closed graphic.
Wherein one first sub-pixel and two second sub-pixels adjacent to
the third sub-pixel form a virtual equilateral triangle, the one
first sub-pixel and the two second sub-pixels adjacent to the third
sub-pixel are respectively located at three vertexes of the virtual
equilateral triangle, and a center of the third sub-pixel and a
center of the virtual equilateral triangle are coincide.
Wherein two first sub-pixels and one second sub-pixel adjacent to
the third sub-pixel form a virtual equilateral triangle, the two
first sub-pixels and the one second sub-pixel adjacent to the third
sub-pixel are respectively located at three vertexes of the virtual
equilateral triangle, and a center of the third sub-pixel and a
center of the virtual equilateral triangle are coincide.
Optionally, colors of the first sub-pixel, the second sub-pixel,
and the third sub-pixel are different, and are respectively one of
a red sub-pixel, a blue sub-pixel and a green sub-pixel
Advantageous effects of the present invention, the pixel
arrangement structure of the present invention includes multiple
first pixel rows and multiple second pixel rows arranged
alternately. Wherein each of the first pixel rows includes multiple
first sub-pixels and multiple second sub-pixels disposed
alternately and at intervals, and each of the second pixel rows
includes multiple third sub-pixels disposed at intervals. Wherein
the first sub-pixel and the second sub-pixel adjacent to the third
sub-pixel form a virtual triangle, the third sub-pixel is disposed
in the virtual triangle formed by the first sub-pixel and the
second sub-pixel adjacent to the third sub-pixel. Applying the
pixel arrangement structure to an OLED display panel can improve
the resolution, reduce the fabrication difficulty, increase the
pixel area, and improve the brightness and life of the OLED display
panel.
BRIEF DESCRIPTION OF THE DRAWINGS
In order to further understand the features and technical contents
of the present invention, please refer to the following detailed
description and drawings regarding the present invention. However,
the drawings are provided for purposes of illustration and
description only and are not intended to be limiting.
FIG. 1 is a schematic structural diagram of a pixel arrangement
structure according to a first embodiment of the present
invention.
FIG. 2 is a schematic structural diagram of a pixel arrangement
structure according to a second embodiment of the present
invention.
FIG. 3 is a schematic structural diagram of a pixel arrangement
structure according to a third embodiment of the present
invention.
FIG. 4 is a schematic diagram of a pixel arrangement structure of
the third embodiment for enhancing a sub-pixel area.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
To further explain the technical means and effects of the present
invention, the following is a detailed description of the preferred
embodiments of the invention and the accompanying drawings.
The invention provides a pixel arrangement structure, which is
mainly applied to an OLED display panel to improve the resolution
of the OLED display panel, reduce the difficulty in manufacturing
the OLED display panel, increase the pixel area, and improve the
brightness and life of the OLED display panel.
Referring to FIG. 1, in a first embodiment of the pixel arrangement
structure of the present invention, the pixel arrangement structure
includes multiple first pixel rows 10 and multiple second pixel
rows 20 arranged alternately. Each of the first pixel rows 10
includes multiple first sub-pixels 31 and multiple second
sub-pixels 32 disposed alternately and at intervals, and each of
the second pixel rows 20 includes multiple third sub-pixels 33
disposed at intervals. The first sub-pixel 31 and the second
sub-pixel 32 adjacent to the third sub-pixel 33 form a virtual
triangle 50, the third sub-pixel 33 is disposed in the virtual
triangle 50 formed by the first sub-pixel 31 and the second
sub-pixel 32 adjacent to the third sub-pixel 33, and the first
sub-pixel 31 and the second sub-pixel 32 are disposed at vertexes
of the virtual triangle 50.
Specifically, as shown in FIG. 1, in the first embodiment, areas of
the first sub-pixel 31 and the second sub-pixel 32 are the same,
and the area of each of the first sub-pixel 31 and the second
sub-pixel 32 is greater than an area of the third sub-pixel 33.
Specifically, as shown in FIG. 1, in the first embodiment, one
first sub-pixel 31 and two second sub-pixels 32 adjacent to the
third sub-pixel 33 form a virtual equilateral triangle. The one
first sub-pixel 31 and the two second sub-pixels 32 adjacent to the
third sub-pixel 33 are respectively located at three vertexes of
the virtual equilateral triangle 50, and a center of the third
sub-pixel 33 and a center of the virtual equilateral triangle 50
are coincide. Alternatively, in other embodiments, as shown in FIG.
2, two first sub-pixels 31 and one second sub-pixel 32 adjacent to
the third sub-pixel 33 form a virtual equilateral triangle. The two
first sub-pixels 31 and the one second sub-pixel 32 adjacent to the
third sub-pixel 33 are respectively located at three vertexes of
the virtual equilateral triangle 50, and a center of the third
sub-pixel 33 and a center of the virtual equilateral triangle 50
are coincide.
Further, as shown in FIG. 1, in the first embodiment, except for a
first row of the first pixel rows 10, each row of the first pixel
rows 10 is shifted to a left relative to a previous row of the
first pixel rows 10 by 0.5 times of a distance between a center of
the first sub-pixel 31 and a center of the second sub-pixel 32
which are adjacent.
Specifically, referring to FIG. 1, each of the third sub-pixels 33
is correspondingly disposed at a gap between the first sub-pixels
31 and the second sub-pixels 32 which are adjacent and arranged at
intervals.
Specifically, referring to FIG. 1, in the first embodiment, a shape
of the third sub-pixel 33 is a regular hexagon. The first sub-pixel
31 includes three first regular hexagonal portions 311 having a
same area. A pair of adjacent side edges of each first regular
hexagonal portion 311 is respectively overlapped with side edges of
the other two first regular hexagonal portions 311. The second
sub-pixel 32 includes three second regular hexagonal portions 321
having a same area. A pair of adjacent side edges of each second
regular hexagonal portion 311 is respectively overlapped with side
edges of the other two second regular hexagonal portions 321.
Since the first sub-pixel 31 includes three first regular hexagonal
portions 311 having the same area, the second sub-pixel 32 includes
three second regular hexagonal portions 321 having the same area,
so that a contour edge of each of the first sub-pixel 31 and the
second sub-pixel 32 has three concave angles. The three concave
angles of the contour edge of the first sub-pixel 31 are
respectively opposite to vertexes of three third sub-pixels 33
adjacent to the first sub-pixel 31.
The three concave angles of the contour edge of the second
sub-pixel 32 are respectively opposite to vertexes of three third
sub-pixels 33 adjacent to the second sub-pixel 32. It can be
understood that the structure that the first sub-pixel 31 includes
three first regular hexagonal portions 311 having the same area and
the second sub-pixels 32 includes three second regular hexagonal
portions 321 having the same area is an ideal structure. In the
manufacturing process, due to limitations of the process equipment
and conditions, the structures of the first sub-pixel 31 and the
second sub-pixel 32 may deviate from the ideal state. For example,
the vertexes of the first regular hexagon portion 311 and the
second regular hexagon portion 321 are arc-shaped.
Preferably, colors of the first sub-pixel 31, the second sub-pixel
32, and the third sub-pixel 33 are different, and are respectively
one of a red sub-pixel, a blue sub-pixel, and a green sub-pixel. In
the first embodiment, the first sub-pixel 31, the second sub-pixel
32, and the third sub-pixel 33 respectively emit a red light, a
blue light, and a green light. Corresponding to the OLED display
panel, that is, the first sub-pixel 31, the second sub-pixel 32 and
the third sub-pixel 33 respectively include organic light-emitting
diodes that emit a red light, a blue light, and a green light. Of
course, in other embodiments of the present invention, the first
sub-pixel 31, the second sub-pixel 32 and the third sub-pixel 33
may also emit light of other colors.
It should be noted that, in the first embodiment of the pixel
arrangement structure of the present invention, the virtual
triangle 50 is formed by the first sub-pixel 31 and the second
sub-pixel 32 adjacent to each third sub-pixels 33, and the third
sub-pixel 33 is disposed in the corresponding virtual triangle 50,
so that the sub-pixels between the pixels can be shared, and the
sub-pixels can be effectively reduced comparing to the conventional
strip-shaped and sequentially arranged red, green and blue
sub-pixel structures so that the display can achieve higher sensory
resolution with the same sub-pixel arrangement density, reduce the
arrangement density of the display sub-pixels while maintaining the
same sensory resolution, and reduce the manufacturing difficulty of
the OLED display panel.
In the meantime, in the first embodiment of the present invention,
each of the first sub-pixel 31 and the second sub-pixel 32 is
provided with a structure having three regular hexagonal portions
with the same area and combined together, each has three portions
extending outward from the center such that the areas of the first
sub-pixel 31 and the second sub-pixel 32 are increased under the
premise of ensuring the gap between the sub-pixels, thereby
enabling the pixel arrangement structure to be applied to the OLED
display panel. The brightness of the OLED display panel is
increased and the service life is increased.
With reference to FIG. 2, and FIG. 2 is a second embodiment of a
pixel arrangement structure according to the present invention. The
second embodiment is different from the first embodiment in that
the pixel arrangement structure of the second embodiment forms a
left-right mirror relation with respective to the first embodiment.
That is, in the second embodiment, except for the first row of the
first pixel rows 10, each row of the first pixel rows 10 is shifted
to a right by 0.5 times of a distance between a center of the first
sub-pixel 31 and a center of the second sub-pixel 32 which are
adjacent. The rest are the same as the first embodiment, and the
description will not be repeated here.
Referring to FIG. 3, in a third embodiment of the pixel arrangement
structure of the present invention, the pixel arrangement structure
includes a multiple first pixel rows 10' and multiple second pixel
rows 20' arranged alternately. Each first pixel row 10' includes
multiple first sub-pixels 31' and multiple second sub-pixels 32'
disposed alternately and at intervals, and each second pixel row
20' includes multiple third sub-pixels 33' disposed at intervals.
The first sub-pixel 31' and the second sub-pixel 32' adjacent to
the third sub-pixel 33' form a virtual triangle 50', the third
sub-pixel 33' is disposed in the virtual triangle 50' formed by the
first sub-pixel 31' and the second sub-pixel 32' adjacent to the
third sub-pixel 33', and the first sub-pixel 31' and the second
sub-pixel 32' are disposed at vertexes of the virtual triangle
50'.
Specifically, as shown in FIG. 3, in the third embodiment, areas of
the first sub-pixel 31' and the second sub-pixel 32' are the same,
and an area of each of the first sub-pixel 31' and the second
sub-pixel 32' is greater than an area of the third sub-pixel
33'.
Specifically, as shown in FIG. 3, in the third embodiment, one
first sub-pixel 31' and two second sub-pixels 32' adjacent to the
third sub-pixel 33' form a virtual equilateral triangle. The one
first sub-pixel 31' and the two second sub-pixels 32' adjacent to
the third sub-pixel 33' are respectively located at three vertexes
of the virtual triangle 50', and the center of the third sub-pixel
33' and the center of the virtual triangle 50' are coincide.
Alternatively, in other embodiments, two first sub-pixels 31' and
one second sub-pixel 32' adjacent to the third sub-pixel 33' form a
virtual equilateral triangle. The two first sub-pixels 31' and the
one second sub-pixel 32' adjacent to the third sub-pixel 33' are
respectively located at three vertexes of the virtual triangle 50',
and the center of the third sub-pixel 33' and the center of the
virtual triangle 50' are coincide.
Further, as shown in FIG. 3, in the third embodiment, except for a
first row of the first pixel rows 10', each row of the first pixel
rows 10' is shifted to a left relative to a previous row of the
first pixel rows 10' by 0.5 times of a distance between a center of
the first sub-pixel 31' and a center of the second sub-pixel 32'
which are adjacent.
Specifically, referring to FIG. 3, in the third embodiment, a shape
of the third sub-pixel 33' is a circle. Each of the first sub-pixel
31' and the second sub-pixel 32' includes three first sides 301'
and three second sides 302'. The first sides 301' and the second
sides 302' are alternately connected to form a closed graphic. The
first side 301' is an arc that is caved toward an inside of the
closed graphic, and the second side 302' is an arc that protrudes
outside the closed graphic.
It is worth mentioning that, in the ideal state of the third
embodiment of the pixel arrangement structure, the shapes of the
first sub-pixel 31' and the second sub-pixel 32' should be
identical. And the radius of curvature of the three first sides
301' of each of the first sub-pixel 31' and the second sub-pixel
32' is also the same, and the radius of curvature 302' of the three
second sides is the same. However, in the third embodiment of the
pixel arrangement structure, in the actual fabrication process, the
shape of the first sub-pixel 31' and the second sub-pixel 32'
actually produced may be slightly different due to the existence of
manufacturing errors (e.g., manufacturing errors caused by
different states of the vapor deposition machine). The radius of
curvature of the three first sides 301' of each of the first
sub-pixels 31' and the three first sides 301' of the second
sub-pixels 32' may also be slightly deviated. The radius of
curvature of the three second sides 302' of each of the first
sub-pixels 31' and the three second sides 302' of the second
sub-pixels 32' may also be slightly deviated, which does not affect
the implementation of the present invention.
Preferably, the colors of the first sub-pixel 31', the second
sub-pixel 32', and the third sub-pixel 33' are different, and are
respectively one of a red sub-pixel, a blue sub-pixel, and a green
sub-pixel. In the first embodiment, the first sub-pixel 31', the
second sub-pixel 32', and the third sub-pixel 33' respectively emit
a red light, a blue light, and a green light. Corresponding to the
OLED display panel, that is, the first sub-pixel 31', the second
sub-pixel 32' and the third sub-pixel 33' respectively include
organic light-emitting diodes that emit a red light, a blue light,
and a green light. Of course, in other embodiments of the present
invention, the first sub-pixel 31', the second sub-pixel 32', and
the third sub-pixel 33' may also emit light of other colors.
It should be noted that, in the first embodiment of the pixel
arrangement structure of the present invention, the virtual
triangle 50' is formed by the first sub-pixel 31' and the second
sub-pixel 32' adjacent to each third sub-pixels 33', and the third
sub-pixel 33' is disposed in the corresponding virtual triangle
50', so that the sub-pixels between the pixels can be shared, and
the sub-pixels can be effectively reduced comparing to the
conventional strip-shaped and sequentially arranged red, green and
blue sub-pixel structures so that the display can achieve higher
sensory resolution with the same sub-pixel arrangement density,
reduce the arrangement density of the display sub-pixels while
maintaining the same sensory resolution, and reduce the
manufacturing difficulty of the OLED display panel.
At the same time, when the FMM is fabricated in actual production,
it is difficult to form a square or pointed pattern regardless of
etching or laser. In the third embodiment of the present invention,
by providing the first sub-pixel 31' and the second sub-pixel 32',
each of the three first sides 301' and the three second sides 302'
are enclosed by a closed graphic, and setting the third sub-pixel
33' to a circle, the present invention is more consistent with the
principle of diffusion, which can effectively reduce the difficulty
of making FMM. And the circular third sub-pixel 33' is the smallest
and most efficient shape in the same area, and the
micro-non-circular illuminator is also regarded as an approximately
circular shape due to the halo effect of the human eye. Therefore,
setting the third sub-pixel 33' to a circular shape can maximize
the efficiency of the third sub-pixel 33' and conform to the
blooming effect of the human eye.
In addition, referring to FIG. 4, since each of the first sub-pixel
31' and the second sub-pixel 32' has three portions extending
outward from the center, and the three first sub-pixels 33' of the
first sub-pixel 31' are respectively opposite to the three third
sub-pixels 33' adjacent to the first sub-pixel 31', and the three
first sub-pixels 301' of each of the second sub-pixels 32' are
respectively opposite to the three third sub-pixels 33' adjacent to
the second sub-pixel 32'. Comparing to a normal design, the first
sub-pixel and the second sub-pixel 60' are also circular such that
in the third embodiment of the present invention, the areas of the
first sub-pixel 31' and the second sub-pixel 32' are both greater
than the area of the normal circular first sub-pixel and the second
sub-pixel 60' when the gap between the sub-pixels is ensured.
Accordingly, after the pixel arrangement structure is applied to
the OLED display panel, the brightness of the OLED display panel is
increased, and the service life increased.
In summary, the pixel arrangement structure of the present
invention includes multiple first pixel rows and multiple second
pixel rows arranged alternately. Wherein each of the first pixel
rows includes multiple first sub-pixels and multiple second
sub-pixels disposed alternately and at intervals, and each of the
second pixel rows includes multiple third sub-pixels disposed at
intervals. Wherein the first sub-pixel and the second sub-pixel
adjacent to the third sub-pixel form a virtual triangle, the third
sub-pixel is disposed in the virtual triangle formed by the first
sub-pixel and the second sub-pixel adjacent to the third sub-pixel.
Applying the pixel arrangement structure to an OLED display panel
can improve the resolution, reduce the fabrication difficulty,
increase the pixel area, and improve the brightness and life of the
OLED display panel.
As described above, for those of ordinary skill in the art, various
other corresponding changes and modifications can be made according
to the technical solutions and technical ideas of the present
invention. All such changes and modifications are intended to fall
within the scope of the appended claims.
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